MegaWifiUploader vs emu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MegaWifiUploader
Easily flash ROM images to a Sega Genesis MegaWifi cartridge wirelessly. Connect via Wi-Fi, select your ROM from various cloud services or local files, and write it to the cartridge in seconds without needing a USB programmer.
- Wireless ROM flashing to MegaWifi cartridge
- Connects via Wi-Fi TCP
- On-device ROM library with database matching
- Sort, filter, and search ROMs
- Supports ROMs from cloud storage and Mail/Messages
- Handles various archive formats
- Progress meter with ETA
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MegaWifi Uploader is a single-screen iPhone tool for flashing ROM images to a MegaWifi cartridge over Wi-Fi. Boot the Sega Genesis with the wflash WiFi loader on the cartridge, type its IP into the app, pick a ROM, tap Connect, then Write. The ROM is on the cart in seconds, the game runs from the next power cycle, and no USB programmer is involved. WHAT IT DOES - Connects to a MegaWifi cartridge running the wflash WiFi loader over plain TCP on your local network (default port 1989). - On-device ROM library. Every ROM in the app's Documents folder is indexed and CRC32-matched against a bundled segaretro.org database of 1,640+ Mega Drive releases, so a file named "Crystal_Pony_Tale_USA_Beta.7z" appears as "Crystal's Pony Tale" with region U and year 1994. - Sort and filter by title, year, size, or filename. Region chips (All / U / E / J), a Retail-only toggle that hides bootlegs and prototypes, a favorites star with swipe-action add/remove, and a search bar that narrows the list as you type. - Pick any ROM iOS can see: Files, iCloud Drive, Dropbox, Google Drive, OneDrive, Box. Files sent as Mail or Messages attachments can be opened directly from the share sheet. - Reads bare ROMs (.bin, .md, .gen, .smd, .32x) and unpacks .zip, .7z, .rar, and .gz archives entirely in memory. The archive's per-file CRC32 is verified before a single byte reaches the cartridge. - Drives the documented wflash wire protocol end-to-end: BLOADER_START, automatic ROM-header patch so the cartridge still boots wflash on power-cycle, ERASE, chunked PROGRAM at 64 KB at a time, AUTORUN. - Pre-flight ROM checks: 8 MB size cap and a SEGA-magic header sanity check warn you about non-standard images before they're flashed. - Four-octet IP entry with auto-advance, paste-of-full-IP support, and the last cartridge address remembered across launches. - Connect opens a TCP socket with a 5-second timeout, so a dead IP fails fast. Write is gated on Connect succeeding. - 60 Hz progress meter. CADisplayLink-driven bar plus percent-complete, throughput, and live ETA. - Light, Dark, or System theme. Portrait and landscape on iPhone and iPad. Full in-app Help screen. WHAT YOU NEED - A MegaWifi flash cartridge for the Sega Genesis / Mega Drive (doragasu's mw-mdma-fw plus an ESP-WROOM-02 or ESP32-C3 Wi-Fi module). - The wflash WiFi loader ROM (mw-wflash) burned to the cartridge once. - A Wi-Fi network the cartridge and your iPhone can both see. The cartridge prints its IP on the TV when wflash boots. PRIVACY No outbound internet connections. No analytics, telemetry, advertising, or data collection of any kind. The only network traffic the app ever generates is the plain TCP socket to the IP you typed. All in-app state lives entirely on your device and is removed when you uninstall. COMPATIBILITY MegaWifi Uploader is an independent third-party companion app for an open-source homebrew flash cartridge. Not affiliated with, endorsed by, or sponsored by Sega Enterprises Ltd., Sega of America, doragasu, or any other manufacturer or contributor to the MegaWifi cartridge.
emu
Play classic games from seventeen different systems on your iPhone without complex setup. Simply add your game backups and start playing. Enjoy features like a unified library, customizable controls, and automatic saves.
- Supports seventeen classic game systems
- No core downloads or configuration needed
- Unified game library with search and favorites
- Customizable on-screen and gamepad controls
- Automatic saves and rewind functionality
- Two-player local and online multiplayer
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emu runs seventeen game systems on one iPhone, from 8-bit cartridges to the disc-based 3D era. There are no cores to download and no configuration files to write. GETTING STARTED TAKES THREE STEPS 1. Pick a backup of a game you own from the Files app. 2. The system is identified from the file's contents, so you never choose one. 3. Tap it in your library and play. Files can stay inside a ZIP or 7z archive, and a CUE and its BIN files can be selected together. If a CUE points at a filename that no longer matches, emu repairs it on import. Large disc images are streamed into place rather than expanded in memory. ONE LIBRARY FOR EVERYTHING Search by name, star what you keep coming back to, and resume from the recent row. Import the same game under a different filename, or as both an archive and its extracted copy, and the CRC-and-size fingerprint still leaves you with a single entry. THE LAYOUT MOVES TO YOUR THUMBS The on-screen pad is multi-touch, with true diagonals and slide-to-change between buttons. Move the pad up or down, and pull the landscape buttons inward or outward. ANY GAMEPAD, MAPPED YOUR WAY Bluetooth and USB controllers connect on their own. Buttons are matched by position rather than by the vendor's printed labels, so a different controller still plays the same way. Reassign a button by pressing it, keep sticky 1P/2P assignment, and tune the stick dead zone. Touch input stays live alongside the gamepad. SAVES HAPPEN QUIETLY, MISTAKES ROLL BACK In-game and memory-card saves are written every 30 seconds, and again when you leave the player. SAVE and LOAD give you a quick state at any moment, and holding REWIND rolls the last seconds back for one more attempt at the jump you just missed. TWO IPHONES, TWO PLAYERS One player hosts and a code appears; the other types it in and joins as player 2. The player joining does not need a copy of the game. The two devices connect directly — gameplay never passes through a server, and a relayed route is detected after connecting and torn down. Two-player games for NES, SNES, PlayStation, Sega Saturn, Nintendo 64, Mega Drive, Master System and PC Engine can be hosted. BRING YOUR OWN GAMES — REQUIREMENTS DIFFER BY SYSTEM No games and no BIOS files are bundled, and nothing can be obtained from inside the app. Use backups of software you are legally entitled to use. Runs with just your game file: NES, SNES, Game Boy / Color, Mega Drive / Genesis, Master System, Game Gear, PC Engine / TurboGrafx-16, WonderSwan / Color, Nintendo 64, GameCube, PlayStation 2, PSP Also needs a BIOS you dumped from your own console: PlayStation, Sega Saturn, Game Boy Advance, Neo Geo Pocket / Color If you are here for Xbox: It needs three files you supply yourself — an MCPX ROM, a compatible Flash BIOS, and a hard-disk image. An unmodified retail Flash BIOS will not boot. Treat Xbox as experimental and for advanced users. ABOUT SPEED GameCube, PlayStation 2, Xbox and Sega Saturn support is experimental. The App Store build runs without a JIT, so how well a game plays depends on the title and your device. Please don't buy on the assumption that a particular game will run smoothly. FREE TO START The free version shows one banner and needs an internet connection. That banner only ever promotes the developer's own apps; there is no tracking-based advertising. A one-time in-app purchase hides it on every device signed in to your Apple Account. iPhone, iOS 17 or later. English and Japanese. emu is built on open-source emulators including ares, PPSSPP, Mupen64Plus, Dolphin, xemu, Play! and Yaba Sanshiro. Licenses and corresponding source links are under Settings > Licenses. All trademarks are the property of their respective owners. emu is not affiliated with, endorsed by or sponsored by any hardware manufacturer.
Screenshots
Verdict
The clearest difference is in-app purchases: MegaWifiUploader at none against emu's 1. MegaWifiUploader also leads on rating (5.0 vs 4.8) and device support (3 vs 1). emu's advantage is ratings volume (5 vs 1). On price, ads and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. emu sells 1 one-off in-app purchase. MegaWifiUploader asks for nothing beyond the download.
MegaWifiUploader holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: emu has 5 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | MegaWifiUploader | emu |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.8 (5 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 146 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Wolak | Code and DESIGN inc |
Customer experience
MegaWifiUploader
emu
In-app purchases
MegaWifiUploader
No in-app purchases
emu
- Hide Ads$4.99









